Kristin Nelson was an actress and artist who married Ricky Nelson and starred in The Adventures of Ozzie and Harriet. She had a turbulent relationship with her brother Mark,. Mark Harmon’s sister, Kristin Nelson, had quite the life before passing away in 2018 at 72 years old. Long before Harmon made a name for himself starring on NCIS, Kristin.
Mark Harmon Sister
A one-time golden girl, Kristin was born to football star and Heisman trophy winner Tom Harmon and actress Elyse Knox Harmon. She was the older sister of Mark, 66, and.